www/typo3: upgrade from 7.6.5 to 7.6.9

Changelogs:

• https://wiki.typo3.org/TYPO3_CMS_7.6.6
• https://wiki.typo3.org/TYPO3_CMS_7.6.7
• https://wiki.typo3.org/TYPO3_CMS_7.6.8
• https://wiki.typo3.org/TYPO3_CMS_7.6.9

PR: 210870
Submitted by: freebsd-ports@charlieroot.de
Approved by: junovitch (mentor)
Security: CVE-2016-5091
MFH: 2016Q3